After being 95% disappointed by the last Mastodon album (Spectrelight the saving grace) I went looking for some filthy sludge like the Mastodon of Remission and before and was pointed to Yob. Not new so I'll not claim to have been into them before guitars were invented but this is from their demo and it's slabs of sludge riffage via Kyuss with a touch of Blind era CoC fronted by someone possessed. Apols if posted. From their demo: